ATHENS (Reuters) -Greece's economy will grow by 2.1% this year under a baseline scenario, the country's influential think tank IOBE said on Tuesday, revising down its previous estimate of 2.4% made in January.

It said the downward revision was due to a lower expected contribution from exports and private consumption.

IOBE's new projection is below the government's estimate for growth of about 2.9% this year. Such a rate would far outpace the euro zone average of 0.8%.

Tourism, the main driver of Greece's economy, which accounts for roughly a fifth of economic output, is expected to fare well this year, IOBE said.

Inflation this year was seen at 3% and unemployment at 10.3%, the think tank added.

(Reporting by Renee Maltezou; editing by Christina Fincher)